Plant Diversity ›› 2014, Vol. 36 ›› Issue (04): 514-522.doi: 10.7677/ynzwyj201413219

• Articles • Previous Articles     Next Articles

Effects of Different Re-vegetation Patterns on Soil Physicochemical
Properties and Bacterial Community in Kunyang Phosphate-mine

 LI  Chun-1、4, LI  Yun-Ju-2, Mortimer  Peter E.1、3, XU  Jian-Chu-1、3   

  1. 1 Key Laboratory of Economic Plants and Biotechnology, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming
    650201, China; 2 The National Development and Utilization of Phosphorus Resource Engineering Technology Research Center,
    Yunnan Phosphate Chemical Group Company, Kunming 650600, China; 3 World Agroforestry Center, EastAsia Node,
    Kunming 650201, China; 4 University of Chinese Academy of Sciences, Beijing 100049, China  
  • Received:2013-12-28 Online:2014-07-25 Published:2013-12-18
  • Supported by:

    十二五支撑计划项目 (201300B0AB06); 国家自然科学基金青年科学基金项目 (Y11D061211); 国家自然科学基金国际合作与交流项目 (Y214361211)

Abstract:

Soil microorganisms are applied to evaluate soil quality and significant in restoration ecology for their important roles on nutrient cycle and sensitivity to environment changes. To investigate the effects of revegetation pattern on soil physicochemical properties and soil bacterial community and the reasons for soil bacterial community discrepancy, the soils of three revegetation patterns (grass of Miscanthus sinensis, the mixed forest of Alnus nepalensis, Cupressus torulosa and Quercus acutissima, the mixed forest of Cupressus torulosa and Alnus nepalensis) in Kunyang phosphatemine, near Kunming, Yunnan province of China were studied. Polymerase chain reactiondenaturing gradient gel electrophoresis (PCRDGGE) and soil physicochemical indices were used to analyze soil bacterial communities (diversity and species composition) and soil physicochemical properties. The results indicated that revegetation contributed to soil nutrients and soil physicochemical properties were different in these three patterns. As for soil bacterial community, the diversity and species composition varied in different patterns. Pearson correlation showed that soil bacterial community diversity was correlated with revegetation pattern significantly but not with any soil physicochemical properties determined in this research. Soil bacterial species composition was strongly correlated with soil available nitrogen and revegetation pattern but no others through Canonical Correspondence Analysis (CCA). It is concluded that both soil physicochemical properties and bacterial community (diversity and species composition) vary in different revegetation patterns and the reason for diversity difference is revegetation pattern while the affecting factors of soil bacterial community composition are soil available nitrogen and revegetation pattern orderly.

Key words: Phosphate-mine, Re-vegetation patterns, Soil physicochemical properties, Soil bacterial communities, PCR-DGGE

CLC Number: 

  • Q 948